The Parthenon has which type of architectural structure a. vaulted arch
b. keystone arch
c. post and lintel (beam)
d. stacked slabs of stone

(i think my answer is a, am i correct? ) a pentagonal traffic sign is a sign. a. school crossing b. parking c. wrong way d. yield

A“still” is the name that differentiates a photograpgh or single motion picture frame from a motion picture.

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?